Kobert elwood dtjeey



-B- E. DUFFY;

olL BURNER.0 APPLICATION FILED IAN. 3. ISI-9.

'Patented om. 7,1919;

1 UNITED. sTATEs `PATENT onirica.

ROBERT ELWOOD DUFFY, OF TORONTO, ONTARIO, CANADA.`

OIL-BURNER.

Specification of Letters IVEatent.A

Patented Oct. *7, 1919.

Application filed January 3, 1919.. seriaiiro.' 269,493.

fuel is transformed into gas, and one of i theobjects ofmy vinvention'is to make a my invention, of aluminum, so as to avoid scaling thereof which occurs when steel or iron is used, with the `resultthat the orifices in the generator-burner,located beneath the generator are considerably clogged y. up@` Since aluminum will notscale, I derive [the great advantage of,` alwayskeeping the orilices in thegenerator-burner clean.l A11-f l other object of 4my'invention is to improve" the construction of air-mixing chainbersso as 'to permit the same to be-readily assembled aiid taken apart, and to enable a positive supply of air to be provided therefor,

whioli supply of air is taken `into the mixing-chaniber well below the"`generatorburner.

Other objects of'my invention will appear in the following specification.

Figure 1 is a side elevation of a gas-A burner within my invention, certain parts being. shown in section. Fig. 2 is a side elevation of my burner at right angles to Fig. 1, parts of the generator-burner Aand generator being shown injvertical longitudinal section, ,as lwell as certain connecting parts.A

Fig. 3 is a vertical'cross section, on an "enlarged scale, on the line 3f-3, Fig, 2, and

Fig. 4f is a detailpartlyfin section of `a selfdischarge end ofthe generator.

cleaning Yneedle-valve `mounted at the gas-` In the' drawings, likel characters `of reference refer to the same `parts. v Itis well-known' thatchanges in the 'atmosphere a'ect'very 'materially the draft throughthe fines 1with which'the fire-box of a stove: is connected, ,anditi'slalso wellf known that the flame-issuing from', the gasl burner, as 'well jas from the generator-v burner, consumes a great deal of air, and',

therefore, itis veryimportanttliat theairintake orifices of the mixing-chamber be p0- sitioned well below the generator-burner so gether as by screws 10. chamber 'Tis formed an opening 11, through valve-stem 12 is'replaced.

the. hollow member B, as shown at C, is a gas pipe D. E is a generator-burner, of any suitable construction, and the same is coup pled tothe hollow member B, through the medium of any suitable means such as the p p y y plate F, forming part of said hollow inemgenerator, iii the preferred*construction of coupled toV one end of the generator H andl thenipple 3 is coupled to the other end of said generator. The extension 4: of the valve-casing 5 screws into the outer end of the lnipple 3. The upper end of the pipe D projects .through anV opening 6 into the chamber 7 of the air-supply device. This chamber is made of an upper portion or cap 8 and a lower portion 9, suitably coupled to- In the back of the which extends.A theouter end of the nipple 3. The air-supply device, supported by the pipe, D, provides a positive means for supporting the vertically-disposed portion of the gas-discharge end of the generator. When the valve-casing 5 has been coupled tothe nippleB, the valve-stem 12 operating in the valve-'casing 5 is removed, `and then the upper portion or cap 8 of the chamber 7 is placed in position, Vafter which Vthe arm 13, carried, 'by the generatorburner'E, supports at its upper end 14, the valve-casingwI, by means ofthe shoulder 15 of said casing restii'igagainst said upper end. "The nut 16 screwing on the threaded portion 17v of the valve-casing Iholdsthe saidvalve-casing V'snugly in place and profuel-receiving end of theV generator.

videsa convenient means 'for supporting the As isusualin gas-burners, a pan. onsaueen is employed to generate sufhcient gas. fromv fuel to make the burner automati in: lts.;A action. I prefer to form the pan integrally with the same casting comprising the gen1; erator-burner E, as shown at 18. So soon` as the fuel within the pan. 18 heats thegen; erator H sufficient, the fuel passing thereinto from the conduit .l4 becomesgasiedand escapes through the orifice 19, formed in the valve-casing, andsince air' is supu plied to the air-supplydeviceby anyl su1table means such as the tubular inletsZl, the gas passing into the pipe Dbecomesmixed with' the proper proportion of air,l and escapes through the 'openings a and b, formed respectively in the hollow member B and.` the bottom of the geneiator-biuner E and plays upon the generator H. Simultaneously, gas passes from the pipe; D- into the hollow memlaer BA and` divides, passing through the arms c into the gas-burnerA.V

It will be seen upon referring v' particularly to Fig. 2 that the intake ends offthe tubular inlets 21 are positioned wellrbelow the generator-burner, and, therefore, I ain assured of a proper supplyV of air, into'the mixing-chamber.

A portion CZ of the generator-burner Eis not provided with orifices, this providing,in effect, a baffle plate, which `coi'npelsthedis-A persal ofthe gas into each endofthegenf erator-burner- 4 It is very important thatthe waste prode, ucts of: combustion thatl willV not perniit perfeet combustion in the.` gasburner, A, be removed from the gas before it reaches this burner. I have foundfrom neXperiments that a core or filling e made of..suitable'minv eral such as, asbestos or. aluminum,shaviiigs most admirably performs the (function. ref. quired. This mineral core or 'filling pos sesses suflicient, porosity to4 permit free passage ofY oil into the. generator and. the free escape of gas therefrom. Byreason of4 its nature, the' said. mineral core' or 'lliiigbef comes greatly heated and absolutelyl insures the fuel escaping inthe form of; gasfrom thel generator H.

A wire-7E is preferably passed throughlsaid core or'lilling so as to permit-fthetgcrliekll readily placed andY removed.

1f desired, the screens ganay be mounted within said generatorbeyondeaehtend of the@ coreyor filling.

Y Although I may use any suitableanaterial..

in makingl the generator H, I preferl touse aluminum, or its equivalent, from the .f,a.ct,;

that by my experiments Ihave frnniclfthat4 suoli al generator'` heats very fr nuelry more quickly than generators made.l of `iron or., steel, and possesses a considerable advantage.`

Sonie suitable meansmusthe employed ato, supportthe burner, andV ay suitable meansV 'illustrated comprises Va circular stand Q.

, slotted..wherenecessary to Apermit-the burner to be placed therewithin. To provide for with openings o. t l

From the foregoing specification, it will Abe.understood that the various parts of my readily taken apart. for oleaning purposes, or for repairs.

Iir'f'time, the or'iflee 19 of the valve-casing 5 will become more or less clogged unless some means isprovidedtoreadily clean said orifice, andzthi's `means should be, of such ay nature, as to renderV4 unnecessary to put thef.burner.out,y For the purpose of cleaning the orifice,` If providel the valve-stem 12` with a. pinQO iii alinement.V in saidy orifice. lVlien nmanipulating the. valve-stem 1,2, the said oriieelcan bell'eptfreadily cleaned. v

@peninglinto the chamberz7 ofthe air: supply. device fisla holel, which cofacts with the tabular inlets. 21. to supply air I* nd that if I make thewire f of alu# when Amade of,` iron or steel,y 'with` resultant advantagesf iisehangesyin construction may be made ign thatsdselesed. 'without departing from the spirit of. lnyfinyention. Forv ex' ample,1 though I4 have,l described both armsA c ofthehollow men'iberlB as condueting gas` intof Chagas-burner A,re allyk`only one of these armsfmay beusedfor that purpose,

Claims 1. The coinloinaion` of substantially circular standfliayingair inlet openingsQaIlCl4 provided,- witli,' vetieal slots downwardly freie. the-upper edsefllreof, a hQrZOntfally dspesedf tubular '16er J burner! SuepQrted, 011 the Aupper edge of 'said stand, a depending.r manfplchhevee rmefcoaneted Qi-Qppet sidesn of said burner, anlairl supplyudevice haras e.. Chambelf 'a vertically diseased valire in, chamber, a;generatorY tube lo-` CatQClbelQ-W Said buimeribetweenl. thearms of` said` .manifoldfr andhaying. oneend project ing-int@ Said' chamberlandfeonnected to., said valira; aanllgshaped, conduit` connecting the Y bottom. of.. said, airv supply` device with/said manifoldgfa generator burner.v supperted-v be!` tween thejariiiav offsaid; mani pld belowsaid generatpn a.v fuel: supply f controlling: valve cQlinected. to,the otherendgof saidgenerator tube., an arm carriedbysaid .generatonbiliner suppoitingtlie '.,last named valve, and` a connection between manfpldiand Athergenerator1 burnenthe, ends ofl said `general:orand said. arm, being.,.reniiovalely,v disposed within The. eombination of; a heriaontallyi disposed tubularV loop` bu-inena dependingmanifoldhaving arms connectedto t opposite manifold and having one end projecting into said chamber and connected to said valve, an L-shaped conduit connecting the bottom of said air supply device with said manifold, a generator burner supported between the arms of said manifold below said generator, a fuel supply controlling valve connected to the other end of said generator tube, an arm carried by said generator burner supporting the last named valve, and a connection between said manifold and generator burner.

3. The combination of a horizontally disposed tubular loo-p burner, a depending manifold having arms connected to opposite sides of the burner, an air supply device having a chamber, said air supply device includingy a lower member with depending air inlets at the opposite ends of the bottom thereof and a removable cap secured on said lower member, a vertically disposed valve in said chamber, a generator tube located below said burner between the arms of said manifold and having one end projecting f. into said chamber and connected to said valve, an L-sha-ped conduit connecting the bottom of said air supply device with said manifold, a generator burner supported between the arms of said manifold below said generator, a fuel supply controlling valve connected to the other end of said generator tube and a connection between said manifold and the generator burner.

4. The combination of a horizontally disposed tubular loop burner, a depending manifold having arms connected to opposite sides of said burner, an air supply device having a chamber, a vertically disposed valve in said chamber, a generator tube located below said burner between the arms of said manifold and having one end projecting intoI said chamber and connected t0. said valve, an L-shaped conduit connecting the bottom of said air supply device with said manifold, a generator burner supported between the arms of said manifold below said generator, a fuel supply controlling valve connected to the other end of said generator tube, and a connection between said manifold and generator burner.

ROBERT ELVVOOD DUFFY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

" YWashington, D. C." 

